单项选择题
He（）the children so badly that hey were terrified of him.
A.behaved B.treated C.dealt D.acted
单项选择题 If you go to America, you will find that there are better（）by road, rail and air than in London.
单项选择题 They handed in their paper（）
单项选择题 We are（）in the future of our motherland.
